Continue toplevel cleanup (GCC library handling for unsupported targets etc.)

[Hans-Peter Nilsson]

On Tue, 29 Mar 2011, Joseph S. Myers wrote:
> Other cleanups here:

> cris*-*-none acts just like cris*-*-elf in
> config.gcc so it's appropriate to make the "*" subcase of cris*-*-* act
> like the -elf case;

'k.

> mmix-*-* disabled "libgloss", i.e. libgloss for the
> host, which is never built anyway.

Whoops, my bad.  Odd that it worked anyway, but I'm not certain
I added that due to actual breakage.

All bits fine by me.

brgds, H-P